scholarly journals Epidemiology of Sports-Related Injuries and Associated Risk Factors in Adolescent Athletes: An Injury Surveillance

2021 ◽  
Vol 18 (9) ◽  
pp. 4857
Author(s):  
Pablo Prieto-González ◽  
Jose Luis Martínez-Castillo ◽  
Luis Miguel Fernández-Galván ◽  
Arturo Casado ◽  
Sergio Soporki ◽  
...  
Keyword(s):  
Risk Factors ◽  
Injury Risk ◽  
Bone Fractures ◽  
Injury Rate ◽  
Personal Data ◽  
Injury Surveillance ◽  
Ankle Sprains ◽  
Adolescent Athletes ◽  
Injury Rates ◽  
Associated Risk Factors

The present study aimed to determine the epidemiology of sport-related injuries in amateur and professional adolescent athletes and the incidence of different risk factors on those injuries. Four hundred ninety-eight athletes aged 14 to 21 voluntarily participated in this prospective injury surveillance, conducted from 1 January 2019 to 31 December 2019. The information collected included: personal data, sports aspects, characteristics of the injuries, and lifestyle. Forty point four percent of the participants suffered an injury in 2019 (39% of them in a previously injured area). The average injury rate was 2.64 per 1000 h. Soccer presented the highest rate (7.21). The most common injuries were: lumbar muscle strains (12.24%), ankle sprains (11.98%), and bone fractures (9.31%). Ankles (36.12%), knees (19.32%), and shoulders (6.47%) concentrated the highest number of injuries. Fifty-nine point twenty-eight percent of the injuries occurred during practices, and 40.72% during competition or peri-competition. Higher injury rates were associated (in this order) with the following factors: (a) Greater number of hours of practice per week. (b) Not performing warm-ups. (c) Using inadequate sports facilities. (d) Being aged 14–17. (e) Not performing physical preparation. (f) Inappropriate training load. (g) Not performing injury-preventive activities. (h) Performing sports technique without the supervision of one sports coach. (i) Inadequate sports equipment. In conclusion, since most injury risk factors are modifiable, it is imperative to implement strategies to reduce amateur and professional adolescent athletes’ injury rates.

scholarly journals Ten-Year Epidemiology of Ankle Injuries in Men's and Women's Collegiate Soccer Players

2019 ◽  
Vol 54 (8) ◽  
pp. 881-888
Author(s):  
Matthew Gulbrandsen ◽  
David E. Hartigan ◽  
Karan A. Patel ◽  
Justin L Makovicka ◽  
Sailesh V Tummala ◽  
...  
Keyword(s):  
National Collegiate Athletic Association ◽  
Injury Rate ◽  
Injury Surveillance ◽  
Ankle Injuries ◽  
Soccer Players ◽  
Lateral Ligament ◽  
Deltoid Ligament ◽  
Surveillance Program ◽  
Ankle Sprains ◽  
Injury Rates

Context Data from the National Collegiate Athletic Association (NCAA) Injury Surveillance Program (ISP) have indicated that ankle injuries are the most common injuries among NCAA soccer players. Objective To review 10 years of NCAA-ISP data for soccer players' ankle injuries to understand how the time period (2004–2005 through 2008–2009 versus 2009–2010 through 2013–2014), anatomical structure injured, and sex of the athlete affected the injury rate, mechanism, and prognosis. Design Descriptive epidemiology study. Setting Online injury surveillance. Main Outcome Measure(s) The NCAA-ISP was queried for men's and women's soccer ankle data from 2004 to 2014. Ankle-injury rates were calculated on the basis of injuries per 1000 athlete-exposures. Rate ratios (RRs) were used to compare injury rates. Injury proportion ratios (IPRs) were used to compare injury characteristics. Results When compared with the 2004–2005 through 2008–2009 seasons, the 2009–2010 through 2013–2014 seasons showed a similar rate of injuries (RR = 0.94, 95% confidence interval [CI] = 0.85, 1.04) but fewer days missed (P < .001) and fewer recurrent injuries (IPR = 0.55, 95% CI = 0.41, 0.74). The 4 most common ankle injuries, which accounted for 95% of ankle injuries, were lateral ligament complex tears (65.67%), tibiofibular ligament (high ankle) sprains (10.3%), contusions (10.1%), and medial (deltoid) ligament tears (9.77%). Of these injuries, high ankle sprains were most likely to cause athletes to miss ≥30 days (IPR = 1.9, 95% CI = 1.24, 2.90). Men and women had similar injury rates (RR = 1.02, 95% CI = 0.94, 1.11). Men had more contact injuries (IPR = 1.28, 95% CI = 1.16, 1.41) and contusion injuries (IPR = 1.34, CI = 1.03, 1.73) but fewer noncontact injuries (IPR = 0.86, 95% CI = 0.78, 0.95) and lateral ligamentous complex injuries (IPR = 0.92, 95% CI = 0.86, 0.98). Conclusions Although the rate of ankle injuries did not change between the 2004–2005 through 2008–2009 seasons and the 2009–2010 through 2013–2014 seasons, the prognoses improved. Among the 4 most common ankle injuries, high ankle sprains resulted in the worst prognosis. Overall, male and female NCAA soccer players injured their ankles at similar rates; however, men were more likely to sustain contact injuries.

scholarly journals Epidemiology of Injuries in National Collegiate Athletic Association Men's Cross-Country: 2014–2015 Through 2018–2019

2021 ◽  
Vol 56 (7) ◽  
pp. 629-635
Author(s):  
Avinash Chandran ◽  
Sarah N. Morris ◽  
Adrian J. Boltz ◽  
Hannah J. Robison ◽  
Christy L. Collins
Keyword(s):  
National Collegiate Athletic Association ◽  
Injury Rate ◽  
Injury Surveillance ◽  
Lateral Ligament ◽  
Surveillance Program ◽  
Ankle Sprains ◽  
Injury Rates ◽  
Inflammatory Conditions ◽  
Cross Country ◽  
Rate Ratios

Context The National Collegiate Athletic Association has sponsored men's cross-country programs since 1938, and the sport has grown greatly in scope since then. Background Routine examinations of men's cross-country injuries are important for identifying emerging temporal patterns. Methods Exposure and injury data collected in the National Collegiate Athletic Association Injury Surveillance Program during 2014–2015 through 2018–2019 were analyzed. Injury counts, rates, and proportions were used to describe injury characteristics, and injury rate ratios were used to examine differential injury rates. Results The overall injury rate was 4.01 per 1000 athlete-exposures (AEs). Most reported injuries were inflammatory conditions (30.2%), strains (18.7%), and sprains (11.5%); rates of inflammatory conditions were highest in preseason. The most commonly reported injuries were lateral ligament complex tears (ankle sprains; 8.2%). Summary Findings of this study were not entirely consistent with existing evidence; continued monitoring of competition injury rates and rates of commonly reported injuries is needed beyond 2018–2019.

scholarly journals Epidemiology of Injuries in National Collegiate Athletic Association Men's Lacrosse: 2014–2015 Through 2018–2019

2021 ◽  
Vol 56 (7) ◽  
pp. 758-765
Author(s):  
Bernadette A. D'Alonzo ◽  
Abigail C. Bretzin ◽  
Avinash Chandran ◽  
Adrian J. Boltz ◽  
Hannah J. Robison ◽  
...  
Keyword(s):  
National Collegiate Athletic Association ◽  
Injury Rate ◽  
Injury Surveillance ◽  
Surveillance Program ◽  
Ankle Sprains ◽  
Epidemiological Evidence ◽  
Injury Rates ◽  
Lower Extremity Injuries ◽  
Extremity Injuries ◽  
Rate Ratios

Context The popularity of National Collegiate Athletic Association (NCAA) men's lacrosse has been steadily increasing since the early 1980s. Background Injury surveillance is an important tool to aid in identifying emerging patterns of sport-related injury in NCAA men's lacrosse. Methods Injury data collected from a sample of men's lacrosse teams through the NCAA Injury Surveillance Program for the academic years 2014–2015 through 2018–2019 were analyzed. Athlete exposures were estimated and computed based on collected exposure data. Injury counts, rates, and proportions were used to describe injury characteristics, and injury rate ratios (IRRs) with 95% confidence intervals (CIs) were calculated to estimate differences in injury rates. Results The overall injury rate was 4.90 per 1000 athlete exposures (AEs), and the competition injury rate was higher than the practice injury rate (IRR = 2.59; 95% CI = 2.35, 2.84). The overall preseason injury rate was higher than the regular and postseason injury rates. The most reported injuries were concussions (8.0%), ankle sprains (7.7%), and hamstring tears (6.9%). Conclusions Study findings were comparable with existing epidemiological evidence. The overall burden of concussions and lower extremity injuries warrant further attention in this population.

scholarly journals A Prospective Injury Surveillance Study on Ski Touring

2019 ◽  
Vol 7 (9) ◽  
pp. 232596711986767 ◽  
Author(s):  
Taina Mueller ◽  
Gerhard Ruedl ◽  
Matthaeus Ernstbrunner ◽  
Fabian Plachel ◽  
Stefan Fröhlich ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Soft Tissue ◽  
Independent Risk Factor ◽  
Multivariate Logistic Regression Analysis ◽  
Injury Rate ◽  
Injury Surveillance ◽  
Surveillance Study ◽  
Injury Rates ◽  
Significant Independent Risk Factor

Background: Ski touring is an outdoor sport with growing popularity in alpine countries. Information about injuries in ski touring is limited. Purpose: To determine injury rates, mechanisms, causes, and risk factors in ski touring. Study Design: Descriptive epidemiology study. Methods: Between November 2015 and May 2016, a total of 191 participants from the Alps region were prospectively tracked via personalized online questionnaires. Injury rates were calculated per 1000 hours of sports exposure. Risk factors were assessed per multivariate logistic regression analysis. Results: A total of 3900 ski tours were performed, with 10,955 hours and 4,108,503 m in height ascension (uphill) recorded. The overall injury rate was 2.5 injuries per 1000 hours of ski touring. A total of 27 injury-events were reported, of which 18 (67%) were classified as mild, 7 (26%) as moderate, and 2 (7%) as severe. Hands (28%) and knees (16%) were the most commonly involved anatomic regions. Most injuries were limited to the soft tissue, such as bruises (31%) and abrasions (18%). Significantly more injuries happened during the descent (n = 17; 63%) than during the ascent (n = 6; 22%) (odds ratio, 5.96; P = .004), while poor weather conditions, icy surface, and inattentiveness were the most often reported reasons for injury. Sidecountry ski touring was identified as the only significant independent risk factor for injury ( P < .001). Conclusion: In this prospective injury surveillance study, the majority of ski touring injuries were mild and limited to the soft tissue. Ski touring injuries were more likely to happen during the descent of a tour, and sidecountry ski touring was the only significant independent risk factor for injury. Bad weather, icy surface, and inattentiveness were found to be the leading causes for an injury-event in this study.

scholarly journals Epidemiology of Foot and Ankle Injuries in NCAA Jumping Athletes in the United States During 2009-2014

2021 ◽  
Vol 9 (4) ◽  
pp. 232596712199805
Author(s):  
Joseph B. Lytle ◽  
Kisan B. Parikh ◽  
Armin Tarakemeh ◽  
Bryan G. Vopat ◽  
Mary K. Mulcahey
Keyword(s):  
Overuse Injury ◽  
Injury Rate ◽  
Injury Surveillance ◽  
Ankle Injuries ◽  
Ankle Sprains ◽  
Foot And Ankle ◽  
Basketball Players ◽  
Injury Rates ◽  
Foot Injury ◽  
Women's Basketball

Background: Foot and ankle injuries comprise a significant proportion of all injuries sustained by National Collegiate Athletic Association (NCAA) athletes. In particular, sports that combine jumping and rapid changes in direction are associated with increased lower extremity injuries. Purpose: To describe the epidemiology of foot and ankle injuries in men’s and women’s jumping sports, including NCAA men’s and women’s basketball, women’s volleyball, and women’s gymnastics, during the 2009-2010 through 2013-2014 seasons. Study Design: Descriptive epidemiology study. Methods: Injury-surveillance data were obtained from the NCAA Injury Surveillance Program for the 2009-2010 through 2013-2014 seasons. Injuries were examined by mechanism, activity during injury, and participation restriction time. Injury rates per 1000 athlete-exposures (AEs), injury rate ratios, and risk ratios with 95% CIs were calculated. Reported sex differences were calculated for men’s and women’s basketball. All 95% CIs not containing 1.0 were considered statistically significant. Results: A total of 1136 players sustained foot and ankle injuries (483 male and 653 female) over 612,680 AEs. These injuries resulted in a combined rate of 1.85 per 1000 AEs (95% CI, 1.75-1.97). Ankle sprains were the most common injury (63.7%), with lateral ligamentous complex injuries making up 77.1% of all ankle sprains. The most common foot injury varied based on sport and sex. Ankle injury rates were higher in male versus female basketball players (injury rate ratio, 1.33 [95% CI, 1.13-1.57]), but foot injury rates did not differ. Among basketball and volleyball players, player contact during jumping was the most common injury mechanism. Female gymnasts had higher overuse injury rates than other athletes (0.49/1000 AEs [95% CI, 0.30-0.74]; P < .002). Overall, female basketball players were 1.81 times more likely to sustain an overuse injury than male basketball players (95% CI, 1.02-3.20; P = .02). Conclusion: The most common foot and ankle injury sustained in collegiate jumping sports was a lateral ligamentous complex ankle sprain. Injury-prevention programs focusing on ankle flexibility, strength, and proprioception may help to alleviate the injury burden and lessen severity. Improving the anticipation of contact during jumping and landing may reduce injury rates and increase player safety. The increased prevalence of overuse injuries in female collegiate athletes competing in jumping sports necessitates further investigation to reduce injury rates through prevention and training programs.

scholarly journals The First Decade of Web-Based Sports Injury Surveillance: Descriptive Epidemiology of Injuries in US High School Boys' Lacrosse (2008–2009 Through 2013–2014) and National Collegiate Athletic Association Men's Lacrosse (2004–2005 Through 2013–2014)

2019 ◽  
Vol 54 (1) ◽  
pp. 30-41 ◽  
Author(s):  
Lauren A. Pierpoint ◽  
Andrew E. Lincoln ◽  
Nina Walker ◽  
Shane V. Caswell ◽  
Dustin W. Currie ◽  
...  
Keyword(s):  
High School ◽  
National Collegiate Athletic Association ◽  
Injury Rate ◽  
Sports Injury ◽  
Injury Surveillance ◽  
Surveillance Program ◽  
Time Loss ◽  
Annual Average ◽  
Injury Rates ◽  
Web Based

ContextThe advent of Web-based sports injury surveillance via programs such as the High School Reporting Information Online system and the National Collegiate Athletic Association Injury Surveillance Program has aided the acquisition of boys' and men's lacrosse injury data.ObjectiveTo describe the epidemiology of injuries sustained in high school boys' lacrosse in the 2008–2009 through 2013–2014 academic years and collegiate men's lacrosse in the 2004–2005 through 2013–2014 academic years using Web-based sports injury surveillance.DesignDescriptive epidemiology study.SettingOnline injury surveillance from lacrosse teams of high school boys (annual average = 55) and collegiate men (annual average = 14).Patients or Other ParticipantsBoys' and men's lacrosse players who participated in practices and competitions during the 2008–2009 through 2013–2014 academic years in high school or the 2004–2005 through 2013–2014 academic years in college.Main Outcome Measure(s)Athletic trainers collected time-loss (≥24 hours) injury and exposure data. Injury rates per 1000 athlete-exposures (AEs), injury rate ratios (IRRs) with 95% confidence intervals (CIs), and injury proportions by body site and diagnosis were calculated.ResultsHigh School Reporting Information Online documented 1407 time-loss injuries during 662 960 AEs. The National Collegiate Athletic Association Injury Surveillance Program documented 1882 time-loss injuries during 390 029 AEs. The total injury rate from 2008–2009 through 2013–2014 was higher in college than in high school (3.77 versus 2.12/1000 AEs; IRR = 1.78; 95% CI = 1.63, 1.94). Most injuries occurred during competitions in high school (61.4%) and practices in college (61.4%). Injury rates were higher in competitions compared with practices in high school (IRR = 3.59; 95% CI = 3.23, 4.00) and college (IRR = 3.38; 95% CI = 3.08, 3.71). Lower limb injuries, muscle strains, and ligament sprains were common at both levels. Concussion was the most frequent competition diagnosis for all high school player positions.ConclusionsRates of time-loss injury were higher in college versus high school and in competitions versus practices. Attention to preventing common lower leg injuries and concussions, especially at the high school level, is essential to decrease their incidence and severity.

scholarly journals The Associated Meniscal Tears and Associated Risk Factors in Concomitant ACL Injuries of the Knee: A Retrospective Analysis

2020 ◽  
Vol 5 (1) ◽  
pp. 981-985
Author(s):  
Rosan Prasad Shah Kalawar ◽  
Pashupati Chaudhary ◽  
Raju Rijal ◽  
Bishnu Pokharel
Keyword(s):  
Risk Factors ◽  
Acl Reconstruction ◽  
Injury Risk ◽  
Meniscus Tear ◽  
Acl Injuries ◽  
Arthroscopic Findings ◽  
History Of ◽  
Post Traumatic ◽  
Associated Risk Factors ◽  
Primary Acl Reconstruction

Introduction: The pattern of meniscus tear has significant impact onsubsequent rehabilitation and functional outcome as theyare usually associated with ACL injury.Knowledge about associated meniscus tear helps to identifypatients in the early post-traumatic phase.  Objectives: To study meniscus tear patterns and associationbetween different tear patterns of meniscus in ACLinjured subjects and to identify potential demographic andother associated risk factors.  Methodology: Routine arthroscopic findings database of 54 patientsoperated for primary ACL reconstruction from January 2017to December 2018 was used to study associated tear of meniscus. Based on arthroscopic evaluation, cases weregrouped into meniscus having no tear, minor tear and majortear. Major tear included complete radial tears, root tearsand unstable longitudinal tears including bucket-handletears.  Result: Totalarthroscopycasesinthestudydurationwere124.Ofthose,43% (n=54) underwent ACL reconstruction (ACLR) for tornACL. Among the patients who underwent ACLR, 58% had notear, 26%hadminortears, and16%hadmajortears ofthemeniscus. Therewere significant differencesbetweenthree groups for gender, age groupsandmechanism of injury. Risk factors formajortearsweremalegenderandage<30years.Minorandmajortears were associated with a contact injury.  Conclusion: Male, age <30 years and history of contact injury havehigh risks for having an associated meniscus tear. Earlyreferral to magnetic resonance imaging and/or arthroscopyis recommended to allow meniscus repair in a timelymanner.

scholarly journals The First Decade of Web-Based Sports Injury Surveillance: Descriptive Epidemiology of Injuries in US High School Girls' Softball (2005–2006 Through 2013–2014) and National Collegiate Athletic Association Women's Softball (2004–2005 Through 2013–2014)

2019 ◽  
Vol 54 (2) ◽  
pp. 212-225 ◽  
Author(s):  
Erin B. Wasserman ◽  
Johna K. Register-Mihalik ◽  
Eric L. Sauers ◽  
Dustin W. Currie ◽  
Lauren A. Pierpoint ◽  
...  
Keyword(s):  
High School ◽  
National Collegiate Athletic Association ◽  
Injury Rate ◽  
Sports Injury ◽  
Injury Surveillance ◽  
Time Loss ◽  
Injury Rates ◽  
Web Based ◽  
High School Girls ◽  
School Girls

Context The advent of Web-based sports injury surveillance via programs such as the High School Reporting Information Online system and the National Collegiate Athletic Association Injury Surveillance Program has aided the acquisition of girls' and women's softball injury data. Objective To describe the epidemiology of injuries sustained in high school girls' softball in the 2005–2006 through 2013–2014 academic years and collegiate women's softball in the 2004–2005 through 2013–2014 academic years using Web-based sports injury surveillance. Design Descriptive epidemiology study. Setting Online injury surveillance from softball teams in high school girls (annual average = 100) and collegiate women (annual average = 41). Patients or Other Participants Girls' or women's softball players who participated in practices and competitions during the 2005–2006 through 2013–2014 academic years in high school and the 2004–2005 through 2013–2014 academic years in college. Main Outcome Measure(s) Athletic trainers collected time-loss injury and exposure data. Injury rates per 1000 athlete-exposures (AEs) were calculated. Injury rate ratios (IRRs) with 95% confidence intervals (CIs) compared injury rates by competition level, school size or division, event type, and time in season. Results The High School Reporting Information Online system documented 1357 time-loss injuries during 1 173 722 AEs; the National Collegiate Athletic Association Injury Surveillance Program documented 1848 time-loss injuries during 579 553 AEs. The injury rate was higher in college than in high school (3.19 versus 1.16/1000 AEs; IRR = 2.76; 95% CI = 2.57, 2.96). The competition injury rate was higher than the practice injury rate in high school (IRR = 2.02; 95% CI = 1.82, 2.25) and in college (IRR = 1.39; 95% CI = 1.27, 1.52). Softball players at both levels sustained a variety of injuries, with the most common being ankle sprains and concussions. Many injuries also occurred while fielding or running bases. Conclusions Injury rates were greater in collegiate versus high school softball and in competitions versus practices. These findings highlight the need for injury-prevention interventions, including strength-training and prevention programs to reduce ankle sprains and provide protection for batters from pitches and fielders from batted balls.

Analysis of Risk Factors for Military Parachuting Injuries among Chinese Air Force Cadet Pilots

2013 ◽  
Vol 423-426 ◽  
pp. 1778-1781 ◽  
Author(s):  
Wen Jing Guo ◽  
Yong Ren Chen ◽  
Yong Bo Yang ◽  
Gao Feng Qu ◽  
Dong Yu Liu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Air Force ◽  
Injury Risk ◽  
Surface Wind ◽  
Surface Wind Speed ◽  
Extrinsic Factors ◽  
Injury Rates ◽  
Factors Associated ◽  
Short Period ◽  
Chinese Air Force

Parachuting injuries among cadet pilots often occur because they undergo extensive training within a short period of time. To explore the injury mechanism and to prevent injuries, this paper investigated the injury risk factors for the military parachuting of cadet pilots. A prospective study of static line parachute descents by Chinese Air Force cadet pilots was performed. The study indicates that 153 cadet pilots were injured, with a total of 168 injuries. The injury rates associated with extrinsic and intrinsic risk factors were compared and analyzed by using orthogonal multivariate analysis. Landing is the most dangerous part of parachuting, causing 88% of injuries. Extrinsic factors associated with increased injury rates are higher surface wind speed and third-generation protective boots. Intrinsic factors associated with reduced injury rates are excellent mental qualities, excellent parachuting movements, and female cadet pilots. Strengthening parachuting movements and mental qualities, approving jumps only when basic parachuting conditions are met, and improving protective equipment are recommended strategies for preventing parachuting injuries.

scholarly journals The First Decade of Web-Based Sports Injury Surveillance: Descriptive Epidemiology of Injuries in United States High School Football (2005–2006 Through 2013–2014) and National Collegiate Athletic Association Football (2004–2005 Through 2013–2014)

2018 ◽  
Vol 53 (8) ◽  
pp. 738-751 ◽  
Author(s):  
Zachary Y. Kerr ◽  
Gary B. Wilkerson ◽  
Shane V. Caswell ◽  
Dustin W. Currie ◽  
Lauren A. Pierpoint ◽  
...  
Keyword(s):  
High School ◽  
National Collegiate Athletic Association ◽  
Injury Rate ◽  
Sports Injury ◽  
Injury Surveillance ◽  
Surveillance Program ◽  
Time Loss ◽  
High School Football ◽  
Injury Rates ◽  
Web Based

Context: The advent of Web-based sports injury surveillance via programs such as the High School Reporting Information Online system and the National Collegiate Athletic Association Injury Surveillance Program has aided the acquisition of football injury data.Objective: To describe the epidemiology of injuries sustained in high school football in the 2005–2006 through 2013–2014 academic years and collegiate football in the 2004–2005 through 2013–2014 academic years using Web-based sports injury surveillance.Design: Descriptive epidemiology study.Setting: Online injury surveillance from football teams of high school boys (annual average = 100) and collegiate men (annual average = 43).Patients or Other Participants: Football players who participated in practices and competitions during the 2005–2006 through 2013–2014 academic years in high school or the 2004–2005 through 2013–2014 academic years in college.Main Outcome Measure(s): Athletic trainers collected time-loss injury (≥24 hours) and exposure data. Injury rates per 1000 athlete-exposures (AEs), injury rate ratios (IRRs) with 95% confidence intervals (CIs), and injury proportions by body site and diagnosis were calculated.Results: The High School Reporting Information Online system documented 18 189 time-loss injuries during 4 539 636 AEs; the National Collegiate Athletic Association Injury Surveillance Program documented 22 766 time-loss injuries during 3 121  476 AEs. The injury rate was higher among collegiate than high school (7.29 versus 4.01/1000 AEs; IRR = 1.82; 95% CI = 1.79, 1.86) athletes. Most injuries occurred during competitions in high school (53.2%) and practices in college (60.9%). The competition injury rate was higher than the practice injury rate among both high school (IRR = 5.62; 95% CI = 5.46, 5.78) and collegiate (IRR = 6.59; 95% CI = 6.41, 6.76) players. Most injuries at both levels affected the lower extremity and the shoulder/clavicle and were diagnosed as ligament sprains and muscle/tendon strains. However, concussion was a common injury during competitions among most positions.Conclusions: Injury rates were higher in college than in high school and higher for competitions than for practices. Concussion was a frequent injury sustained during competitions, which confirms the need to develop interventions to mitigate its incidence and severity.

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